24 games ranked by how much the tags Steam players vote on them overlap with Depth of Extinction's. A rare tag counts for far more than one that sits on half the store, and popularity never moves a game up.
What they share most: Tactical RPG, Perma Death, Turn-Based Tactics, Party-Based RPG, Strategy RPG, Rogue-lite.

1·The Storm Guard: Darkness is Coming
93% match · Tactical RPG, Perma Death
80% of 168 reviews positive

2·The Last Spell
92% match · Tactical RPG, Perma Death
91% of 13,771 reviews positive

3·App 1437010
92% match · Tactical RPG, Perma Death
96% of 252 reviews positive

4·Mortal Glory
90% match · Tactical RPG, Turn-Based Tactics
87% of 582 reviews positive

5·The Iron Oath
88% match · Tactical RPG, Party-Based RPG
77% of 931 reviews positive

6·Invisible, Inc.
88% match · Tactical RPG, Turn-Based Tactics
91% of 5,793 reviews positive

7·Heroes of Steel RPG
87% match · Perma Death, Turn-Based Tactics
78% of 286 reviews positive

8·Cyber Knights: Flashpoint
87% match · Perma Death, Tactical RPG
94% of 3,248 reviews positive

9·Warbanners
87% match · Tactical RPG, Turn-Based Tactics
71% of 615 reviews positive

10·Templar Battleforce
87% match · Tactical RPG, Perma Death
93% of 985 reviews positive

11·Fell Seal: Arbiter's Mark
86% match · Turn-Based Tactics, Tactical RPG
88% of 6,368 reviews positive

12·Tactics Ogre: Reborn
86% match · Tactical RPG, Turn-Based Tactics
73% of 4,637 reviews positive

13·Pathway
86% match · Tactical RPG, Turn-Based Tactics
77% of 2,263 reviews positive

14·TROUBLESHOOTER: Abandoned Children
85% match · Tactical RPG, Turn-Based Tactics
93% of 9,877 reviews positive

15·Stellar Tactics
85% match · Tactical RPG, Party-Based RPG
78% of 1,754 reviews positive

16·Dark Deity
85% match · Tactical RPG, Turn-Based Tactics
72% of 3,118 reviews positive

17·Fallen: A2P Protocol
85% match · Turn-Based Tactics, Turn-Based
38% of 226 reviews positive

18·Those Who Rule
84% match · Tactical RPG, Perma Death
90% of 1,144 reviews positive

19·Dimensionals
84% match · Turn-Based Tactics, Party-Based RPG
80% of 530 reviews positive

20·Age of Fear: The Free World
84% match · Tactical RPG, Turn-Based Tactics
83% of 410 reviews positive

21·Urtuk: The Desolation
83% match · Tactical RPG, Turn-Based Tactics
88% of 2,550 reviews positive · 23 playing

22·Disgaea 5 Complete
83% match · Turn-Based Tactics, Tactical RPG
88% of 3,582 reviews positive

23·King Arthur: Knight's Tale
83% match · Tactical RPG, Turn-Based Tactics
84% of 7,567 reviews positive

24·Dungeon Rats
83% match · Tactical RPG, Turn-Based Tactics
77% of 724 reviews positive
The closest matches to Depth of Extinction on Steam are The Storm Guard: Darkness is Coming, The Last Spell, App 1437010, Mortal Glory, The Iron Oath. They rank highest because their Steam community tags overlap most with Depth of Extinction's, and shared tags include Tactical RPG, Perma Death, Turn-Based Tactics.
Every game is described by the tags Steam players vote on it. Rare, specific tags such as Tactical RPG, Perma Death, Turn-Based Tactics count far more than catch-all ones like "Indie" or "Singleplayer", and each game is scored on how closely its whole tag profile matches Depth of Extinction's. Popularity never affects the ranking.